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USB Certification - Important, Critical and a Great Starting Point (not an Endpoint)

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June 21, 2016

USB is endpoints

That’s a Pun (which unfortunately has to be explained)

When you design a USB peripheral, like a USB mouse, it will can have as few as 2 endpoints

The mouse needs a control endpoint, for configuration. That’s Endpoint 0 (zero).

It will have 1 Interrupt endpoint.

This takes in mouse clicks, right click, left click, center click, and scrolling mouse wheel.

An interrupt endpoint must get through to the PC immediately for immediate responsiveness.